The son of a woman who was shot and killed the night before is comforted by a friend named Gege, 26, while laying on the ground on the 800 block of West 50th Place Thursday, July 28, 2016, in Chicago.

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A member of the Chicago Police Department collects bullet casings from a puddle at the scene of a shooting on the 6600 block of South Peoria Street Thursday, April 7, 2016, in Chicago. (Armando L. Sanchez/Chicago Tribune)

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Buildings glow near the South Side after the sun sets Monday, Oct. 16, 2017 in Chicago.

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A bullet home sits in the window inside the home of Earnest Falkner, 67, on the 800 block of West 50th Place where four people were shot and two were killed the night before Thursday, July 28, 2016, in Chicago. Two bullets entered Falkner's home and one destroyed his fish tank.

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Paramedics transport a 16-year-old who was shot near the intersection East 83rd Street and South Ingleside Avenue Sunday, Aug. 30, 2015, in Chicago.

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Two women watch as the body of fatal shooting victim is removed from the crime scene on the 1000 block of North Lamon Avenue Wednesday, Dec. 23 2015, in Chicago.

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Police work the scene where a person was shot in the forearm near the intersection of West 79th Street and South Throop Street Saturday, May 27, 2017 in Chicago. (Armando L. Sanchez/Chicago Tribune)

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A person watches from a window while police work the scene where one person was shot on the 5500 block of South Throop Street Saturday, July 15, 2017 in Chicago.

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State Police close the northbound lanes of the Dan Ryan Expressway after a person was shot on the Dan Ryan near the 95th street overpass during the Memorial Day weekend Sunday May 27, 2018 in Chicago.

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From left, Erica Pettway, 11, sucks on her thumb while sitting with her cousins Ezekiel Shine, 17, and Janiyah Moseley, 11, outside their grandmothers home Saturday, April 4, 2015 in Chicago. Erica’s father was shot earlier in the day by Chicago Police officer.

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Jeremiah Kelly waits to undergo surgery after he was shot in the foot while standing with two other men on the 6300 block of South Normal Boulevard Saturday May, 21 2016 in Chicago.

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A Glock used in 5 separate shootings, which left two people dead, sits at the Homan Square police facility Thursday, June 9, 2016, in Chicago.

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A detainee waits in a holding area before being placed on electronic monitoring and released inside the electronic monitoring discharge facility in the basement of the Cook County Jail Thursday April, 12 2018, in Chicago.

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A young boy leans against a gate at the scene of a fatal shooting near the intersection of North Lorel Avenue and West Madison Street Sunday, May 15, 2016, in Chicago.

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Birds are released during a funeral for Alprentiss Nash, who was was shot to death July 28, 2015, on the Near West Side in Chicago. Nash had recently been freed from prison in 2012 after serving 17 years when murder charges against him were dropped,

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A police officer plays with a group of children while working the scene where two 16-year-old boys were shot and critically wounded at 31st Street beach Sunday, June 11, 2017 in Chicago.

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From left, Senetra Cross, 26, the sister of Calvin Cross kneels over Calvin Cross , 4, the son of Calvin Cross, while visiting the gravesite of Calvin Cross Saturday, May 28, 2016, in Homewood, Ill. Cross was shot and killed by members of the Chicago Police.

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A woman and her three-year old daughter pray with other community members during anti-violence rally near the intersection of West 46th Place and South Rockwell Street in Brighton Park where 10 people were shot.

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Marla Stogner walks through her living room Sept. 1, 2012, in Chicago, Ill. On Aug. 31, Marla's son, 17-year-old Jalen C.J. Stogner, was shot and killed while leaving a laundry mat with his mother and younger brother, 11-year-old DeShawn Sims.

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A 11-year-old boy watches members of the Police work the scene of a quadruple shooting on the 5200 block of South Morgan Street Thursday, Sept. 24, 2015, in Chicago.